Bottle stopper



FIG. 1 is a top view of the bottle stopper showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is another side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top perspective view thereof;

FIG. 7 is another top perspective view thereof; and,

FIG. 8 is a bottom perspective view thereof. 

CLAIM The ornamental design for a bottle stopper, as shown and described. 